Grade 2 mental maths worksheet on expanded form, featuring addition of place values and number decomposition.

Sure! Let’s solve each part of this Grade 2 Mental Maths Worksheet step by step.

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## ✔ PART 1: Write each expansion in the form of numerals.

This means we are adding the hundreds, tens, and ones to get the full number.

1. `500 + 80 + 3 = ?`

- 500 (hundreds)
- 80 (tens)
- 3 (ones)
→ Add them: 500 + 80 = 580 → 580 + 3 = 583

✔ Answer: 583

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2. `700 + 70 + 7 = ?`

- 700 + 70 = 770 → 770 + 7 = 777

✔ Answer: 777

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3. `500 + 30 + 5 = ?`

- 500 + 30 = 530 → 530 + 5 = 535

✔ Answer: 535

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4. `100 + 50 + 5 = ?`

- 100 + 50 = 150 → 150 + 5 = 155

✔ Answer: 155

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5. `200 + 60 + 9 = ?`

- 200 + 60 = 260 → 260 + 9 = 269

✔ Answer: 269

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## ✔ PART 2: Write the following numbers in expanded form as given in example.

The example:
372 = 3 hundreds + 7 tens + 2 ones

We need to break each number into its hundreds, tens, and ones place values.

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1. `524 = ? hundreds + ? tens + ? ones`

- 5 is in the hundreds place → 5 hundreds
- 2 is in the tens place → 2 tens
- 4 is in the ones place → 4 ones

✔ Answer: 5 hundreds + 2 tens + 4 ones

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2. `398 = ? hundreds + ? tens + ? ones`

- 3 → 3 hundreds
- 9 → 9 tens
- 8 → 8 ones

✔ Answer: 3 hundreds + 9 tens + 8 ones

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3. `837 = ? hundreds + ? tens + ? ones`

- 8 → 8 hundreds
- 3 → 3 tens
- 7 → 7 ones

✔ Answer: 8 hundreds + 3 tens + 7 ones

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4. `148 = ? hundreds + ? tens + ? ones`

- 1 → 1 hundred
- 4 → 4 tens
- 8 → 8 ones

✔ Answer: 1 hundred + 4 tens + 8 ones

*(Note: “1 hundred” is correct — even though it’s singular, it’s still one hundred.)*

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5. `733 = ? hundreds + ? tens + ? ones`

- 7 → 7 hundreds
- 3 → 3 tens
- 3 → 3 ones

✔ Answer: 7 hundreds + 3 tens + 3 ones

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## 📝 Final Answers:

Part 1:

1. 583
2. 777
3. 535
4. 155
5. 269

Part 2:

1. 5 hundreds + 2 tens + 4 ones
2. 3 hundreds + 9 tens + 8 ones
3. 8 hundreds + 3 tens + 7 ones
4. 1 hundred + 4 tens + 8 ones
5. 7 hundreds + 3 tens + 3 ones

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Let me know if you’d like this turned into a printable answer sheet or explained with visuals! 😊